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Graphene

Using layers of graphene, scientists claim to have created a photodetector that converts l...

Converting light to electricity is one of the pillars of modern electronics, with the process essential for the operation of everything from solar cells and TV remote control receivers through to laser communications and astronomical telescopes. These devices rely on the swift and effective operation of this technology, especially in scientific equipment, to ensure the most efficient conversion rates possible. In this vein, researchers from the Institute of Photonic Sciences (Institut de Ciències Fotòniques/ICFO) in Barcelona have demonstrated a graphene-based photodetector they claim converts light into electricity in less than 50 quadrillionths of a second.  Read More

Sir Kostya Novoselov (left, one of the two graphene Nobel laureates) and Chancellor George...

In two claimed firsts, researchers at the University of Manchester have produced both the first commercial application of graphene and the world's first graphene light-bulb. It is expected that this new device will have lower energy emissions, cheaper manufacturing costs, and a longer running life than even LED lights. And this isn't just a pie-in-the-sky prototype, either. The team who developed it believes that the graphene light-bulb will be available for retail sale within months.  Read More

Researchers have created a nanoscale biomicrorobot (or 'cytobot') that responds electrical...

By cladding a living cell with graphene quantum dots, researchers at the University of Illinois at Chicago (UIC) claim to have created a nanoscale biomicrorobot (or cytobot) that responds electrically to changes in its environment. This work promises to lay the foundations for future generations of bio-derived nanobots, biomicrorobotic-mechanisms, and micromechanical actuation for a wide range of applications.  Read More

Don't throw that graphene away – its holes are proton-friendly (Image: University of Minne...

We already knew that graphene was a highly useful material, but just how useful is it? Well, it turns out that even defective graphene may be valuable. According to a team of mostly-American scientists, improperly-formed graphene could find use in next-generation fuel cells. Among other things, those cells might allow electric cars to be recharged in the amount of time that it currently takes to refuel a gas-burning vehicle.  Read More

The all-new Spanish supercar, the GTA Spano (Photo: C.C. Weiss/Gizmag.com)

Not all show cars are vaporware and not all boutique supercars are merely dreams. Spania's GTA Spano is a good case in point. It's got looks, it's got performance, it's got an in-house V10 engine and it's got a prominent place at this year's Geneva Motor Show. Most importantly, it has an undeniable solidity to it that says anything but "vaporware".  Read More

Graphene oxide seems to interfere at the cellular membrane level, targeting and neutralizi...

While well known for its unique electromechanical properties, graphene may also prove key in preventing cancer tumor recurrence. A drawback of traditional cancer treatment with radiation and chemotherapy is that the primary developmental source of future tumors is not eradicated. Cancer stem cells, or CSCs, can survive treatment and give rise to recurring tumors, metatasis, and drug resistance after repeated treatments. Researchers from the University of Manchester and the University of Calabria have discovered that graphene oxides targets and neutralize CSCs in a manner that is not yet fully understood.  Read More

Researchers have created a new graphene-based flexible LED display prototype (not pictured...

Researchers from the University of Manchester and University of Sheffield have developed a new prototype semi-transparent, graphene-based LED device that could form the basis of flexible screens for use in the next-generation of mobile phones, tablets and televisions. The incredibly thin display was created using sandwiched "heterostructures", is only 10-40 atoms thick and emits a sheet of light across its entire surface.  Read More

A diagram of the magnetized graphene (Image: Shi Lab, UC Riverside)

Graphene is extremely strong for its weight, it's electrically and thermally conductive, and it's chemically stable ... but it isn't magnetic. Now, however, a team from the University of California, Riverside has succeeded in making it so. The resulting magnetized graphene could have a wide range of applications, including use in "spintronic" computer chips.  Read More

A rendering of a 3.7 micron-wide 'microbullet' hitting a sheet of graphene, which deforms ...

While graphene is already known for being the world's strongest material, most studies have focused on its tensile strength – that's the maximum stress that it can withstand while being pulled or stretched, before failing. According to studies conducted at Houston's Rice University, however, its ability to absorb sudden impacts hadn't previously been thoroughly explored. As it turns out, the material is 10 times better than steel at dissipating kinetic energy. That could make it an excellent choice for lightweight ballistic body armor.  Read More

A supercapacitor-based charger currently under development can load up in only five minute...

An Oxford-based startup has turned to crowdfunding to help develop Zap&Go, a phone charger with an emphasis on speed and portability. Thanks to a graphene supercapacitor and an ad-hoc power supply, the device will reportedly charge to its 1,500-mAh capacity – enough to fully charge an iPhone 5s – in only five minutes and promises to be a much more practical solution than current alternatives, particularly when traveling.  Read More

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